COPENHAGEN — Picture 11 miles of smoothly paved bike path meandering through the countryside. Largely uninterrupted by roads or intersections, it passes fields, backyards, chirping birds, a lake, some ducks and, at every mile, an air pump.

For some Danes, this is the morning commute.

Susan Nielsen, a 59-year-old schoolteacher, was one of a handful of people taking advantage of Denmark’s first “superhighway” for bicycles on a recent morning, about halfway between Copenhagen and Albertslund, a suburb, which is the highway’s endpoint. “I’m very glad because of the better pavement,” said Ms. Nielsen, who wore a rain jacket and carried a pair of pants in a backpack to put on after her 40-minute commute.

The cycle superhighway, which opened in April, is the first of 26 routes scheduled to be built to encourage more people to commute to and from Copenhagen by bicycle. More bike path than the Interstate its name suggests, it is the brainchild of city planners who were looking for ways to increase bicycle use in a place where half of the residents already bike to work or to school every day.

“We are very good, but we want to be better,” said Brian Hansen, the head of Copenhagen’s traffic planning section.

He and his team saw potential in suburban commuters, most of whom use cars or public transportation to reach the city. “A typical cyclist uses the bicycle within five kilometers,” or about three miles, said Mr. Hansen, whose office keeps a coat rack of ponchos that bicycling employees can borrow in case of rain. “We thought: How do we get people to take longer bicycle rides?”

They decided to make cycle paths look more like automobile freeways. While there is a good existing network of bicycle pathways around Copenhagen, standards across municipalities can be inconsistent, with some stretches having inadequate pavement, lighting or winter maintenance, as well as unsafe intersections and gaps.

“It doesn’t work if you have a good route, then a section in the middle is covered in snow,” said Lise Borgstrom Henriksen, spokeswoman for the cycle superhighway secretariat. “People won’t ride to work then.”

For the superhighway project, Copenhagen and 21 local governments teamed up to ensure that there were contiguous, standardized bike routes into the capital across distances of up to 14 miles. “We want people to perceive these routes as a serious alternative,” Mr. Hansen said, “like taking the bus, car or train.”

The plan has received widespread support in a country whose left- and right-leaning lawmakers both regularly bike to work (albeit on slightly different models of bicycle).

Riding on the first superhighway, which grew more crowded as it neared the city, Marianne Bagge-Petersen said she was heading to a support group for job seekers. “I think it’s very cool,” she said, noting that the path allowed her to avoid roads with more car traffic. “Taking the bike makes me feel good about myself. I’m looking for a job, and if I don’t get out, it’s going to be a very long day.”

The Capital Region of Denmark, a political body responsible for public hospitals as well as regional development, has provided $1.6 million for the superhighway project.

“When we look at public hospitals, we look very much at how to reduce cost,” said a regional councilor, Lars Gaardhoj, who had just picked up his three small children in a cargo bike decorated with elephants. “It’s a common saying among doctors that the best patient is the patient you never see. Anything we can do to get less pollution and less traffic is going to mean healthier, maybe happier, people.”

Photo

An 11-mile-long path called a bicycle superhighway has opened between Copenhagen and Albertslund, a western suburb.Credit
Jan Grarup for The New York Times

In Denmark, thanks to measures like the superhighway, commuters choose bicycles because they are the fastest and most convenient transportation option. “It’s not because the Danes are more environmentally friendly,” said Gil Penalosa, executive director of 8-80 Cities, a Canadian organization that works to make cities healthier. “It’s not because they eat something different at breakfast.”

Lars Gemzo, a partner at Gehl Architects, said that within Copenhagen, biking was already the best option for many kinds of trips. “If you want to drive a car for a medium distance, you know you are a fool,” he said. “You are going to waste time.”

Danish statistics show that every 6 miles biked instead of driven saves 3 1/2 pounds of carbon dioxide emissions and 9 cents in health care costs. But many cite happiness among the chief benefits of bicycle commuting.

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“When you have been biking for 30 minutes, you have a really good feeling about yourself,” said Henrik Dam Kristensen, the minister for transport, who supports the superhighways. “You really enjoy a glass of wine because you’ve earned it.”

Frits Bredal, the head of communications at the Danish Cyclists’ Federation, cautioned that the superhighways were not perfect. “Ideally, there would be no red lights, there would be a perfect pavement, no holes, no obstacles, a real highway,” Mr. Bredal said.

Several biking innovations are being tested in Copenhagen. Some, like footrests and “green wave” technology, which times traffic lights at rush hour to suit bikers, have already been put into place on the superhighway. Others, like garbage cans tilted at an angle for easy access and “conversation” lanes, where two people can ride side by side and talk, might show up on long-distance routes in the future.

Superhighway users can also look forward to some variation on the “karma campaign,” now under way in Copenhagen, in which city employees take to the streets with boxes of chocolate to reward cyclists who adhere to the five rules of cycling: be nice, signal, stay to the right, overtake carefully and, rather than let bicycle bells irritate you, do your best to appreciate them.

The next superhighway will link Copenhagen with the municipality of Fureso, to the northwest. There, the existing bike path takes riders through a beautiful forest that is, unfortunately, very dark at night.

Several years ago, a Fureso resident, Karsten Bruun Hansen, started a “bike bus,” in which cyclists meet and commute together, taking turns blocking the wind. (Inspired by Mr. Hansen’s idea, the municipality also created a bike bus for children to ride to school together.)

Mr. Hansen, who estimates that he personally saves a ton of carbon dioxide every year, hopes that the superhighway will encourage more people to ride their bikes. “It’s unavoidable to commute to work,” Mr. Hansen said. “This way, you are using the time doing something fun.”

Ole Bondo Christensen, Fureso’s mayor, is also looking forward to the improvements that the superhighway will bring. Mr. Christensen, who does not own a car, bikes nearly four miles to work every day. “It’s my way to clear my brain,” he said. “Sometimes I get new ideas.”

This summer, after the rest of the solar-powered lights are installed, Fureso’s section of the road will be superhighway-ready.

“Now, the wind should always be at your back,” Mr. Christensen said with a smile. “We are working on that.”

A version of this article appears in print on July 18, 2012, on Page A10 of the New York edition with the headline: Commuters Pedal to Work on Their Very Own Superhighway. Order Reprints|Today's Paper|Subscribe